mqtt message

Subject: [OASIS Issue Tracker] Updated: (MQTT-87) The Term "Subscription" and its usage throughout the spec

From: OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>

To: mqtt@lists.oasis-open.org

Date: Wed, 16 Oct 2013 11:02:39 +0000 (UTC)

[ http://tools.oasis-open.org/issues/browse/MQTT-87?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Richard Coppen updated MQTT-87:
-------------------------------
Proposal:
New lines before 227 (WD13)
Topic Filter. An expression contained in a Subscription, to indicate an interest in one ore more topics. It may include wildcard characters
Line 228 (WD13)
<<replace Subscription with the following>>
A Subscription comprises a Topic Filter and its maximum QoS. A Subscription is associated with a single Session. A Session can contain more than one Subscription. Each Subscription within a session MUST have a different Topic Filter.
was:
Line 228 (WD13)
A Subscription comprises a Topic Filter and its maximum QoS. A Subscription is associated with a single Session. A Session can contain more than one Subscription. Each Subscription within a session MUST have a different Topic Filter.
> The Term "Subscription" and its usage throughout the spec
> ---------------------------------------------------------
>
> Key: MQTT-87
> URL: http://tools.oasis-open.org/issues/browse/MQTT-87
> Project: OASIS Message Queuing Telemetry Transport (MQTT) TC
> Issue Type: Improvement
> Components: core
> Affects Versions: 3.1.1
> Reporter: Peter Niblett
> Fix For: 3.1.1
>
>
> We should make sure the spec has an agreed definition of the term "subscription" and uses it consistently,
> There is currently a definition in WD-12.. "The request made by a client to receive Payload Messages published by Clients. The Subscription contains a Topic Name which can include wild card characters so that it may match many Topic Names."
> This seems to make "Subscription" equvialent to "Subscribe" Control Packet,, whereas we probably want something that refers to the stateful object that is maintained by the server on behalf of the client. Also, even if we wanted it to mean that, a Subscribe Packet can contain more than one Topic Name, so the second sentence would be incorrect anyway
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